Results 261 to 270 of about 15,243,501 (296)

Modeling of a buried conductor for an electromagnetic transient simulation

IEEJ Transactions on Electrical and Electronic Engineering, 2006
AbstractThe paper has proposed a distributed‐line model of a buried bare conductor with horizontal and vertical configuration by assuming an artificial insulator outside of the bare conductor so that the characteristic impedance and the propagation velocity of the buried conductor is evaluated as an insulated conductor (cable) by the cable constants ...
Akihiro Ametani, Daigo Soyama, Yu Ishibashi, Naoto Nagaoka, Shigemitsu Okabe   +4 more
openaire   +1 more source

Investigation of the use of electromagnetic transient models for transient stability simulation

6th International Conference on Advances in Power System Control, Operation and Management. Proceedings. APSCOM 2003, 2003
This paper presents the advancement in enhancing the transient stability simulation with detailed device level modeling of power electronic devices such as FACTS and HVDC. An electromagnetic transient (EMT) model of an SVC has been built and incorporated into a conventional transient stability (TS) program.
openaire   +1 more source

Modeling and Simulation of ±800kV HVDC Electromagnetic Transients

2020 Asia Energy and Electrical Engineering Symposium (AEEES), 2020
With the dense access of Large-scale high voltage direct current (HVDC), the problem of AC and HVDC interaction is prominent. To ensure the safe and stable operation of AC/DC hybrid power grid, it is necessary to accurately simulate HVDC transient and steady state according to the actual control program.
Weiyuan Wang, Fei Dou, Jinmin Cheng, Xuan Yu, Mengmeng Yang, Qinxin Huang   +5 more
openaire   +1 more source

Modelling of circuit breakers in the Electromagnetic Transients Program

IEEE Transactions on Power Systems, 1988
The recent publication of experimental and theoretical results from verified arc models has made possible the implementation and testing of a dynamic circuit-breaker model using the Electromagnetic Transients Program (EMTP). An estimator was developed to obtain model parameters from test data. Results obtained with the estimator are given, and its data
V. Phaniraj, A.G. Phadke
openaire   +1 more source

Underground and Down-hole Transient Electromagnetic Modelling

Exploration Geophysics, 1987
In recent years, there has been an increasing emphasis in exploration placed on transient electromagnetic (TEM) measurements beneath the surface, to help improve the resolution of small conductive targets beneath complex over­burden, and to enable the detection of targets that cannot be detected with surface methods because of their intrinsic detection
S. K. Lee, G. Buselli
openaire   +1 more source

Multirate Modeling Scheme for Electromagnetic Transients Calculation

IEEE Transactions on Power Delivery, 2004
In this paper, a multirated scheme based on filter banks is proposed for networks modeling in electromagnetic transient calculation. The basic idea is to convolve in the sub-bands using models of different complexity for the lowand high-frequency range in order to reduce the overall computational complexity.
H. Zini, G. Ratta
openaire   +1 more source

Human Equivalent Antenna Model for Transient Electromagnetic Radiation Exposure

IEEE Transactions on Electromagnetic Compatibility, 2003
Thin-wire antenna model of the human body exposed to the transient excitation is presented in the paper. The analysis is based on the solution of the corresponding integral equation and it is carried out directly in the time domain (TD) . The integral equation is handled via the TD Galerkin-Bubnov scheme of the boundary element method.
Antonio Šarolić, Choy Yoong Tham, D Poljak   +2 more
exaly   +3 more sources

Nonlinear Corona Models in an Electromagnetic Transients Program (EMTP)

IEEE Power Engineering Review, 1983
Corona attenuation and distortion of overvoltage waves is an important factor in determining the overvoltage level inside the electrical system due to atmospheric lightning discharges. Simulation of overvoltage wave propagation in electrical network by digital computers is often used in the electric power industry.1,2 This paper describes the ...
openaire   +1 more source

TRANSIENT ELECTROMAGNETIC MONITORING OF THE CRYOLITHOZONE: MATHEMATICAL MODELING

Russian Geology and Geophysics
Abstract ––The paper presents theoretical results on mathematical modeling and numerical inversion of transient electromagnetic data for the monitoring of the state of the cryolithozone. Solutions to the direct and inverse problems are considered based on the vector finite element method, the Sumudu integral transform and the apparatus ...
M.I. Epov, V.N. Glinskikh, O.V. Nechaev, K.N. Danilovskiy, I.V. Mikhaylov   +4 more
openaire   +2 more sources

Induction Machine Modelling for Electromagnetic Transient Program

IEEE Transactions on Energy Conversion, 1987
A method is presented by which an accurate dynamic induction motor model may be developed from a knowledge of standard specification data for the motor. The incorporation of the model into the Electromagnetic Transients Program (EMTP) is described. Examples are given of its use in the study of the starting performance of a large induction motor and of ...
G. J. Rogers, D. Shirmohammadi
openaire   +1 more source